Stafsjö

Stafsjö MV Standard Knife Gate Valve

Efficient Isolation. Durable Construction. Wide Application Range. The Stafsjö MV Knife Gate Valve is engineered for on/off and control of liquids and dry media. Its robust stainless steel construction and modular design make it suitable...

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About Stafsjö MV Standard Knife Gate Valve

Efficient Isolation. Durable Construction. Wide Application Range.

The Stafsjö MV Knife Gate Valve is engineered for on/off and control of liquids and dry media. Its robust stainless steel construction and modular design make it suitable for a wide range of applications, including pulp stock (up to 7%), wastewater, biomass, process water, pellets and granules. The MV’s precision-machined gate guides ensure reliable sealing and long service life, even in demanding industrial environments.

For technicians, engineers, and production managers, this means:

Versatile Performance – Suitable for both liquid and dry media handling.
High Durability – Stainless steel body and precision gate guidance reduce wear.
Tight Shutoff – Ensures reliable sealing to protect process integrity.
Minimal Maintenance – Easy seal replacement without removing the actuator.
Wide Size Range – Available from DN 50 to DN 1800.

With proven installations in pulp & paper, chemical processing, mining, and biomass industries, the MV knife gate valve delivers superior durability and process efficiency.

Learn more about our Valve Repair Centres in Secunda and Durban that provide full repair, reconditioning, automation, and testing services to keep your Stafsjö MV valve performing at its best.

Reduce Downtime. Improve Process Control. Ensure Reliable Sealing.

Download the Stafsjö MV Brochure

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Contact us Today – Tel: 0861 103 103

Valve Repair Services

Series	MV
Design	Standard Knife Gate with a proven global track record
Features	Ex stock South Africa up to DN300 / 12″ Wide range of applications Simple maintenance One piece body design Modular design Packing system in TwinPack Robust top works Easy to change seats with the retainer ring Low life cycle costs
Size Range	DN 50 – 1600 / 2″ – 64″
Pressure Rating	PN 10 / ANSI 150
Temperatures	SS up to 400°C
End Connections	Wafer
Blade Materials	Stainless steel / Hard chromed
Max Pressure	16 bar @ 20°C
Body Materials	Stainless Steel / Cast Iron / Other materials on request
Seat Materials	PTFE / EPDM / Viton / Nitrile / Polyurethane / Metal
Options & Accessories	Manual, pneumatic or electric actuators Chain wheel Open close limit switches Valve Positioners
Applications	Where you are looking for knife gate valve with a proven global track record for a wide range of applications like low consistency pulp < max. 7% / Black liquor / White liquor / Water, sewage and sludge / Powder / Pellets / Slurries.